When I'll cut the fabric, I'll have to add seam allowances. I will also need, as in the original model from which I was inspired, to add two straps to tie on the neck and build a stripe about five cm that will pass through the under-breast and to tie on the back.

Using all the pins you need (you will need enough) pin the briefs on the ironing board: you have to stretch the rubber bands that are sewn at the waist and around the leg but not the fabric: this will ensure that you have the real size of your briefs when not curled because of the elastic.

The padded ironing board allows you to push the pins in order to pull the rubber bands as much as possible.

In this first phase we want to get a true measure of the front of the slip, so do not worry too much about the back but try to notice if the rubber bands are stretched and if you are respecting the two side seams and that the crotch seam.

Cover the briefs with a sheet of TNT, pin the TNT on the ironing board and with a marker trace the contour of the front of the briefs. Be careful and try to trace the line using small dashes because the marker might otherwise, through the TNT which is still a loosely woven fabric, dye the briefs below. If you have a light touch the line will still be visible and you will not have nasty surprises on the original briefs.

Now we have to do the same thing with the back of the briefs: pin the briefs to the ironing board trying to stretch the elastic as much as possible but not the fabric, always respecting the two side seams and that the crotch seam. Might be a bit 'more difficult than before, maybe you will have to reposition the pins several times but nothing impossible:

As you can see the back is not perfectly symmetrical, in order to have more precision I will fold the two patterns in half and I'll make sure to get a perfectly symmetrical pattern.
I preferred, however, draw the entire pattern of the briefs because the fabric I will use is printed and I want to have the exact perception of where the drawings will be positioned in the final swimsuit model.

All for today, I hope that, thanks to this tutorial, you'll have more new ideas!

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Informazioni personali

I'm Piera, alias ClaraBelle on the web, mother, wife and daughter. I love sewing, embroidering and everything that's creative. I sew since I was sixteen and now I design my own patterns and sew perfect fit garment. Thanks for stopping here and reading!